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Certificados Tipo Suplementarios Aceptado/ValidadoFAA STC ST12089CH19/12/2025· Secretaría de Autoridad Aeronáutica

Acceptance of Foreign Supplemental Type Certificate (STC) ST12089CH (issued by FAA).

________________________________________________________________________ Unidad Administrativa Especial de Aeronáutica Civil www.aerocivil.gov.co - Av. El Dorado # 103 – 15 Bogotá, D.C., Colombia Para radicaciones https://aerocivilsgdea.com/ControlPQR Conmutador: (+57) 601 425 1000 - Línea WhatsApp: (+57) 317 5455847 *02435398* Al contestar cite Radicado 2025240040064715 Id: 2435398 Folios: 3 Fecha: 2025-12-24 10:30:53 Anexos: 0 Remitente: DIRECCION DE TRANSPORTE AEREO Y ASUNTOS AEROCOMERCIALES Destinatario: global aerospace Bogotá D.C., December 19, 2025. Mr. Todd Hamblin Program Manager Global Aerospace Design Corp. 151 West 4th Street #50. Cincinnati. OH. 45202, USA. Subject: Acceptance of FAA Supplemental Type Certificate No. ST12089CH. References: 1. Colombian Aviation Regulations RAC 21.515 “Validation /Acceptance of Supplemental Type Certificate”. 2. FAA STC No. ST12089CH Dear Mr. Hamblin, According to your application for the acceptance of FAA Supplemental Type Certificate No. ST12089CH, related to the: “Premium Economy Class Seat Relocation in accordance with master drawing list 24GR136-MDL revision D dated Oct 14, 2025” Considering that “Global Aerospace Design Corp.” has submitted the associated technical documentation, which was reviewed and evaluated under Colombian Civil Aviation Regulations (RAC 21, 21.515). The Colombian Civil Aviation Authority (AEROCIVIL) accepts the Supplemental Type Certificate No. ST12089CH, for major alteration application on Colombian registered aeronautical product, in accordance with airworthiness limitations and conditions stated in the FAA Supplemental Type Certificate. ________________________________________________________________________ Unidad Administrativa Especial de Aeronáutica Civil www.aerocivil.gov.co - Av. El Dorado # 103 – 15 Bogotá, D.C., Colombia Para radicaciones https://aerocivilsgdea.com/ControlPQR Conmutador: (+57) 601 425 1000 - Línea WhatsApp: (+57) 317 5455847 As substantiated by “Global Aerospace Design Corp”, the following is the list of required documents that must accompany each installation on Colombian registered aeronautical product as required by RAC 43, 43.300(b): 1. Copy of FAA STC No. ST12089CH 2. Drawing No. 24GD136SI Rev. A. 3. ICA Doc. No. 24GR136-ICA Rev. C, dated Oct 14, 2025 4. AMM Supplement Doc. No.24GR136-AMM Rev. B , dated Oct 14, 2025. 5. Weight and Balance Report Doc. No. 24gr136-WBR Rev. IR, dated Nov. 10, 2025. 6. A letter of authorization of use of the STC signed by the appropriated person in the STC holder organization identifying A/C tail number and S/N. 7. The STC No. ST12089CH will be entered in the national index of accepted STC`s. Please bear in mind that this acceptance is issued to the STC and its supporting technical data and does not constitute an approval for the product (or products parts of the STC) to be imported, is the responsibility of the installer to comply with the requirements set forth in RAC 21.120 for the product (or products) being imported. Holder´s Responsibilities Please consider that your company is responsible to keep this STC information (the alterations published documents) updated to guarantee safe operation and support the continued airworthiness of the altered aircraft registered in Colombia. Design Changes Any major change of the STC information must be reported and documented to the Colombian Civil Aviation Authority (AEROCIVIL). Validity The validity of this letter of acceptance expires when the Supplemental Type Certificate approval ceases to exist. If at any point in time, the AEROCIVIL finds that there is a ________________________________________________________________________ Unidad Administrativa Especial de Aeronáutica Civil www.aerocivil.gov.co - Av. El Dorado # 103 – 15 Bogotá, D.C., Colombia Para radicaciones https://aerocivilsgdea.com/ControlPQR Conmutador: (+57) 601 425 1000 - Línea WhatsApp: (+57) 317 5455847 reasonable doubt to indicate that the safety of the aeronautical product is compromised because of an unsafe condition developed in the altered aeronautical product, AEROCIVIL may cancel the letter of STC acceptance. Sincerely, EDGAR BENJAMIN RIVERA FLOREZ Secretary of Aeronautical Authority (E) Colombian Civil Aviation Authority (AEROCIVIL) Copy: STCs Validation File PMI Avianca S.A Prepared by: Jairo Sora Torres – Certification of Aeronautical Products Engineer Reviewed by: David Fernando Muñoz – Certification of Aeronautical Products Manager